Fuel-package



C. S. SPURR AND H. P. RANDALL.

FUEL PACKAGE.

APPLICATION FILED ocT. 2s, IaI.

1,327, 175, Patented Jan. 6, 1920.

UNITED STATES PATENT OFFICE.

CHARLES s. SPURR, oF Los ANGELES, AND HERMAN F. RANDALL, oF FASADENA,

'cALIFoRNIA, AssIeNoRs oF o ANGELES, CALIFORNIA.

NE-HALF To FRANK W. FRAME, oF Los FUEL-PAoKAeE Application sied 'october2s, 191s.

To a'ZZ 'whom t may concern.-

Be it known that we, CHARLES S. SPURR and HERMAN P. RANDALL, citizens ofthe United States, and residing at Los Angeles and Pasadena,respectively, in the county of Los Angeles, State of California, havejointly invented new and useful Improvements in Fuel-Packages, of whichthe following is a specification.

This invention relates to fuel packages or vulcanizers and the like, andfor such a vulcanizer as is shown in our co-pending application SerialNo. 234,7 20, filed May 15, 1918, The fuel package described and claimedin this present application has also been described in said co-pendingapplication; but is not the subject matter of the claims of saidco-pending application, said lclaims being directed to the vulcanizeritself.

It is an object of the present invention t'o provide a fuel packet,which will, in convenient, adaptable and easily handled form, providethe desired fuel charge for a vulcanizer. lt is further an object ofthis invention to provide a fuel package in' such form as to be easilyinsertible in the vulcanizer; and while the present described fuelpackage is not at all limited to the particular type of vulcaniz'erdescribed in our co-pending application, yet it is particularly suitablefor that use.

`Her`etofore it has been the practice to provide what is called avulcanizing packet, comprising a plate with a vulcanizabl'e rubber patchattached to one side and a bodyA 0f fuelatt-.vched to the opposite side.This body of fuel has been commonly a cake of porous material, such a`scardboard or strawboard which is impregnated with combustiblesubstances. An object of our invention is the formation of al Separatefuel package which is not necessarily permanently attached to a plate,and not necessarily a part of a vulcanizing package, but which is insuch form as to be easily placed in a vulcanizing pan; and which,withal, may be easily and cheaply manufactured, and will give eflicientand positive results upon its combustion.

The invention will be best understood from the following detaileddescription of a preferred formation of fuel package; reference for thispurpose being had to the accompanying drawings in which- Figure 1 is avertical longitudinal section Specification of Letters Patent.

Patented Jan. 6, 1920.

serial N. 259,355.

showing a typical form of vulcanizer with our fuel package placedtherein; Fig. 2 is a perspective of vour fuel package, the top beingbroken away for purposes of illustration; and Fig. 3 is a transversesection of our fuel package, l

In the drawings we illustrate a vulcanizer apparatus which comprisesessentially abase 10, a clamp yoke 11, a 'clamp screw l2, `a spider 18,and a pan 14 carried by the spider. The tire tube or other piece ofrubber wished to be vulcanized 'is illustrated at 15; it is placed uponthe base l0 and the pan 14 is clamped down on the rubber or othervulcanizable patch 16, which is placed over the ruptured part of tire15. Pan la may be made of a suitable heat conducting material, and, inthe particular form of apparatus herein shown, may be made of heavycopper or steel, the pan being a perF manent part of the apparatus andnot dis= carded aft'er cach vulcaniz'ing operation.

The bottom of the pan is preferably confcave, as is shown in thedrawings, so as to more or less accurately lit upon the upper convexsurface of the patch 16. Such pans, and also the patches, are usuallyoval in plan, and the bottom of the pan isconcave both longitudinallyand transversely. Our fuel package is made to t the pan.

The fuel package is shown at P and comprises a container' having abottom part 20, a top part 21, and afilling 22 of some proper fuel. Thisfuel is preferably a substance, or mixture of substances, capable `ofautogenou's combustiona slow y burning powder. The materia ls of thepowder (such as sugar and saltpeter) may' be miredV tcgether in properproportions and preferably miXed in granulated form; the loose mixturebeingmerely put into the bottom part 20 of the container and the toppart 21 being put into place afterward. The container will hold acertain measure of fuel; and thus the heat value is easily regulated andmade uniform for all such packages. The vcontainer itself is preferablymade of some combustible substance, although we preferably intend not tomake it of a substance having any large heat value; being merely acontainer which is inflammable, and hence eliminating the necessity orbot-her of the user removing the cover in order to light the fuel. Theuser thus has a fuel package in which there can be no variation fromstandard heating value, and no waste of fuel. The fuel is not eXposed tothe wind. The container, for instance, may be of strawboard, cardboard,or the like.

And it is also preferably of such a substance as will burn with verylittle or no flame-fsuch a substance as will char rather than burn witha flame. Certain grades of soft and inexpensive wood pulpfcardboard,etc., answer well for this use; but any special and suitable substancemay be used; and if necessary, for the purposes herein set forth, acardboard or any other material of which the container is made may beimpregnated either with a substance to make it more combustible where itis very hardly combustible, or may be impre nated with a substance tomake it more s owly infiammable where it otherwise would burn quickly orburn with flame. Ordinary materials which might burn quickly and `withflame, may be impregnated with mineral substances, as with a silicate.

When it is desired to effect a vulcanizing operation, the apparatus isput in the position and arrangement shown in Fig. l, a fuel packagehaving been placedV in the pan as indicated. The fuel package is thenignited by igniting the outer container. For the purposes of readilyigniting the container, the top, or a portion of the top of thecontainer, (being that part which is eX- posed and readily ignited witha match or the like) may be especially treated with some readilyoxidizable substance, (such as a solution of saltpeter in water aboutone to three) so that it will readily be ignited with a match. However,in the ordinary case, a cardboard, strawboard or" the like, may beselected which may be easily enough ignited, and which at the same timewill burn with little flame. When the fuel package is consumed, thecharred container, neXt the walls of the pan, keeps the burned fuel fromsticking to the pan; so that the burned matter may then be easilydiscarded by merely inverting the pan.

The container may preferably be formed with its bottom 2O concave bothlongitudinally and transversely; or the bottominay be originally formedfiat and forced into the concave shape `illustrated when itis` placedupon the concave bottom of the pan. Preferably the top and bottom partsof the container are made to fit more or less tightly so that the partswill not fall apart, without necessitating the use of any adhesive orthe like; and the Whole package may be made to fit the pan more or lesssnugly, but not` ing a thin flat container of cardboard, and

a filling of slov\T burning fuel.

4. A fuel packet for vulcanizers, embodying a thin flat container ofcombustible material and a filling ofa substance autogenouslycombustible.

5. A fuel packet for vulcanizers, embodying a thin flat container ofcombustible material, and a filling of a substance `slowly autogenouslycombustible.

6. A fuel packet for `vulcanizers, embodying a thin flat combustiblecontainer, and a filling of a slowly autogenously combustible substancein comminuated form.

7. A fuel packet for vulcanizers, embodying a thin fiat box-likecontainer ofslowly combustible card-board, and a filling of a slowlyautogenously combustible substance in comminuted form.

In witness that `weclaim the foregoing we have hereunto subscribed ournames this 15th day of October, 1918.

CHARLES S. SPURR. HERMAN P. RANDALL.` Witness:

VIRGINIA BERINGER.

